Abstract: The invention relates to a suspendable scale for weighing a bundle, comprising: a first part for suspending the scale from a structure; a second part for suspending an implement from the scale; a third part joining the first part and second part, the first part, second part, third part being at least partly radially nesting relative to one another; at least two strain gauges connected to the third part; a wireless transmitter for sending the measurement data to an operator; a self-powered power supply for feeding an electric current to the strain gauges and the wireless transmitter; a first space formed in the scale to integrate the wireless transmitter inside the scale; and a second space to integrate the power supply inside the scale. The invention also relates to an arrangement for hoisting a bundle.

Abstract: A method for generating at least one installation operation for at least one on-going installation process of at an installation site includes obtaining site information of the at least one ongoing installation process at the installation site from a site control unit arranged at the installation site, obtaining site information gathered from one or more previous installation processes at one or more other installation sites from one or more external databases, defining at least one installation operation for the at least one ongoing installation process based on the site information of the at least one ongoing installation process and the site information gathered from the one or more previous installation processes, and generating at least one signal including an instruction to perform the at least one installation operation for the at least one ongoing installation process to the site control unit.

Abstract: A track assembly for a terrain going vehicles having tires, the track assembly having at least two traction bars. The traction bars each having a body that is dimensioned to extend over the width of a tire and guide plates extending from the body so that they can be set to reach over the edge of the tire and to the sides of the tires and ears at each end of each traction bar, extending crosswise on relation to the length of the traction bar and on both sides of the body of the traction bar, the ears having each at least one hole. There is at least one link having a link body with a length and one connecting hole at each opposite end of the link body, and pins set to run through a pair of one hole of the link body and at least one hole of a ear of the traction bar in order to form a chain, wherein the pins are locked in relation to the holes of the ears so that rotation of the pins in the holes is prevented.

Abstract: What is disclosed is a new type of method and device for sharpening the saw chain of a chain saw. In the first stage of the method, a rotating sharpener is brought against the first cutter to be sharpened of the chain and the sharpener is pressed against the first cutter at a set sharpening angle in order to remove material from the cutting edge of the first cutter. The chain is then moved in its longitudinal direction to position the second cutter for sharpening. In the second stage, the rotating sharpener is kept rotating in the same direction as in the first stage and the rotating sharpener is brought at a set sharpening angle against the second cutter to be sharpened in order to remove material from the cutting edge of the second cutter.

Abstract: A guide bar for a chain saw comprising two opposite elongate surfaces and a slot formed between said opposite sides running along the periphery of the guide bar, in order to receive and retain the chain during cutting. At least one of the elongate surfaces is furrowed across its surface in the direction of the cutting movement of the guide bar. The invention also relates to an apparatus for operating the chain saw in a forestry machine.

Abstract: A guide bar for a chain saw comprising two opposite elongate surfaces and a slot formed between said opposite sides running along the periphery of the guide bar, in order to receive and retain the chain during cutting. At least one of the elongate surfaces is furrowed across its surface in the direction of the cutting movement of the guide bar. The invention also relates to an apparatus for operating the chain saw in a forestry machine.

Abstract: A track assembly for a terrain going vehicles having tires, the track assembly having at least two traction bars. The traction bars each having a body that is dimensioned to extend over the width of a tire and guide plates extending from the body so that they can be set to reach over the edge of the tire and to the sides of the tires and ears at each end of each traction bar, extending crosswise on relation to the length of the traction bar and on both sides of the body of the traction bar, the ears having each at least one hole. There is at least one link having a link body with a length and one connecting hole at each opposite end of the link body, and pins set to run through a pair of one hole of the link body and at least one hole of a ear of the traction bar in order to form a chain, wherein the pins are locked in relation to the holes of the ears so that rotation of the pins in the holes is prevented.